Segment Reporting - Revenues by Operating Segment and Country (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Revenue, Major Customer [Line Items]
Total revenues	$ 1,837	$ 1,726	$ 5,202	$ 4,816
Canada
Revenue, Major Customer [Line Items]
Total revenues	$ 956	$ 940	$ 2,683	$ 2,565
Canada | Revenue Benchmark | Geographic Concentration Risk
Revenue, Major Customer [Line Items]
Concentration risk, percentage	10.00%	10.00%	10.00%	10.00%
United States
Revenue, Major Customer [Line Items]
Total revenues	$ 645	$ 587	$ 1,849	$ 1,679
United States | Revenue Benchmark | Geographic Concentration Risk
Revenue, Major Customer [Line Items]
Concentration risk, percentage	10.00%	10.00%	10.00%	10.00%
Other
Revenue, Major Customer [Line Items]
Total revenues	$ 236	$ 199	$ 670	$ 572
TH
Revenue, Major Customer [Line Items]
Total revenues	1,060	1,033	2,976	2,830
BK
Revenue, Major Customer [Line Items]
Total revenues	538	491	1,551	1,407
PLK
Revenue, Major Customer [Line Items]
Total revenues	188	164	538	477
FHS
Revenue, Major Customer [Line Items]
Total revenues	$ 51	$ 38	$ 137	$ 102